Hi, I get no output in XOD serial window. Neither following “upload and debug” nor if I connect through Deploy>Connect serial menu.
I can still connect to my Arduino with ArduinoIDE serial monitor and everything seems to work pretty well with the code uploaded from XOD.
Have you tried uploading code, opening serial window, then pressing reset button on Arduino? I know I have problems with debug mode where watch nodes will not update after upload until I reset board.